Picker stop-motion for looms.



0-.7as,1 1o." T PATENTED FEB. 21, 1905.

A.DONT.

PIGKER STOP MOTION FOR-1.06m.

APP LIULTIOF FILED 1030.1, 1904.

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WITNESSES. IN VIN r052:

NITED STATES.

Patented February 21, 1905.

AUGUSTE DONT, OF MANVILLE, RHODE ISLAND.

PICKER STOP-MOTION FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 783,110, dated February 21, 1905,

Application filed December-1, 1904. Serial No. 235,019;

To all whom, it may concern:

Beitknown that I, AUeUsTn DONT, asubjeet of the King of Belgium, residing at Manville, in the county of Providence and State of Rhode Island, have invented a new'and useful Improvement in Picker Stop-Motions for Looms, of which the following is a specification.

This invention has reference to ani mprove ment in looms, and more particularly to an improvement in picker stop-motions for looms whereby the throwof the picker-sticks is automatically stopped when required.

When in the operation of weaving a shuttle is about to be thrown through the shed and a box at the opposite end of the lay which is intended to receive the shuttle is by accident or mistake already occupied by a shuttle, it must be evident that the stopping of the first-mentioned shuttle is imperative if a smash is to be prevented. The most positive and quickest method for preventing the throw of the shuttle is by stopping the throw or operation of the picker-sticks.

The object of my invention is to automat: ically stop the operation of the picker-sticks and the throw of a shuttle when two shuttles are in opposite boxes, thereby preventing the smashing of the warp-threads and liability of injury to the operators.

My invention consists in the peculiar and novel construction of a stop-motion for this purpose and its connection with the operative parts of a loom whereby a smash is prevented when two shuttles are in opposite boxes, as will be more fully set'forth hereinafter.

Figure 1 is a front view of a loom provided with my improved picker stop-motion, showing the loom partly in section and the stopmotion mechanism inthe position it would assume with a shuttle in the left-hand shuttle-box. Fig. 2 is an enlarged detail view of A; the left-handpart of the stop-motion mechanism, showing the position the mechanism would assume in throwing a shuttle from the left-hand shuttle-box; and Fig. 3 is a detail sectional View of part of the stop-motion mechanism, taken on line X X of Fig. 2.

In the drawings, a (4 indicate the side frames,

a the lay, a a the shuttle-boxes, a (t the swells, a a the picker-sticks, a a the floorsprings, 64 the rocking rail, (4 a the pickerstick-supporting members on the outer ends of the rocking rail, a a the picking-shafts, and a a the picking-arms, of a loom. These picking-arms a a are'changed slightly in construction from the usual picking-arms, so as to have the straight ends a (0 as shown in Figs. 1 and 2. r

i In applying my improved picker stop-motion to a loom II secure the doublebearings L b to the lay a at each end, as shown in Fig.

1. These bearings support the upper feeler:

shaft Z) and the lower feeler-shaft b Onthe left-hand end of the upper feeler-shaft b is secured the feeler-arm b in a position to bear on a swell a of the left-hand shuttle-boxes a. The lever 6* is secured to the right-hand end of the upper feeler-shaft Z). On the right-hand end of the lower shaft 6 is secured thefeelerarm bi in a position to bear on a swell of the right-hand shuttle-box, and on the left-hand end of the lower shaft 6 is secured the lever 6". The feeler-arms b and b are held against the swells under; spring tension, and, the levers, b and b: are held in their downward positions under the shuttle-boxes by the coiled springs Z2 6 on the feeler-shafts. pivotally secured, at their upper ends to the levers b and I). The fingers c 0 have the upwardly-turned hook-shaped ends 0 c and are adjustably secured to the straight ends a a of the picking-arms a. a by the set-bolts o 0 The hook-shaped ends of the fingers. extend outward toward the picker-sticks.

, The arms 41 (Z have the downwardly-turned hook-shaped inner ends d d and the holes 61 2 (Z for pivotally securing the lower ends of the rods 6 b to the arms. These arms d (Z are pivotally secured at their outer ends to the upper ends of the supporting-links d d, which in turn are pivotally secured at their lower ends to the picker-stick-supporting members a a The connecting-links (Z a are pivotally secured to the upper ends of the supporting links d (Z and to the pickerstraps d d, which are secured to the pickersticks a in the usual way.

In the operation of my improved picker stop-motion the entire mechanism of the stopmotion with the exception of the fingers c 0 The rods 6 I) are.

on the picker-arms moves in unison with the lay and picker-stick. As the lay reaches its extreme inward position the hooked ends of the arm (Z d come into position over the hooked ends of the fingers c o. A pickingarm a is moved in the direction of the arrow by the operation of the usual picking-cones. The hooked end of a finger 0 engages with the hooked end of an arm d and through the arm dfthe link al the picker-strap d, and the picker-stick a a shuttle is thrown from one shuttle-box to the opposite shuttle-box. If by mistake or other means a shuttle should be in the left-hand shuttle-box and a shuttle was about to be thrown from the right-hand shuttle-box, the outward movement of the swell on the left-hand shuttle-box would move the feeler-arm If outward, partly rotate the shaft 6 against the tension of the spring and through the lever b and the rod 6 raise the hooked end d of the arm (2 out of engagement with the hooked end 0' of the finger 0 on the right-hand side of the loom, thus stopping the throw of the right hand pickerstick, as shown in Fig. 1, and the outward movement of the swell on the right-hand shuttle-box would move the feeler-arm If outward, partly rotate the shaft 6 against the tension of the spring I), and through the lever b and the rod 6 raise the hooked end d of the arm (Z out of engagement with the hooked end 0' of the finger c on the left-hand side of the loom, stopping the throw of the lefthand picker-stick. Both picker-sticks would now be out of engagement until one of the shuttles is removed by the operator.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a loom, of apicker stop-motion consisting of bearings secured to the lay, upper and lower feeler-shafts supported in the bearings, spring-pressed feelerarms on the shafts adapted to bear on the swells of the shuttle-boxes,levers on the shafts extending under the shuttle-boxes, downwardly-extending rods pivotally secured to the levers, hook-shaped arms at each side of the loom pivotally connected to the picker:

sticks and to the downwardly-extending rods, and hook-shaped fingers on the picking-arms of the loom in a position to engage with the hook-shaped arms on the picker-sticks when the lay is in its inward position, as described.

2. The combination with a loom, of apicker stop-motion having hook-shaped fingers adjustably secured to the picking-arms of the loom, hook-shaped arms pivotally connected to the picker-sticks, and intermediate mechanism actuated by the swells on the shuttleboxes to raise the hook-shaped arms on the picker-stick out of engagement with the hookshaped fingers on the picker-arms, when a shuttle is in the shuttle-box, as described.

3. The combination with aloom, of a picker stop-motion consisting of bearings secured to the lay, upper and lower feeler-shafts supported in the bearings, a feeler-arm on the left end of the upper shaft adapted to bear on a swell of the left-hand shuttle-boxes, a rearwardly-eXtending-lever on the right end of the upper feeler-shaft, a downwardly-extending rod pivotall y secured to the lever, a feeler arm on the right end of the lower feeler-shaft adapted to bear on a swell of the right-hand shuttle-boxes, a rearwardly-extending lever on the left end of the lower feeler-shaft, a downwardly-extending rod pivotally secured to the lever, hook-shaped arms at each side of the loom pivotally connected to the pickersticks and to the downwardly-extending rods, and hook-shaped fingers on the picking-arms of the loom in a position to engage with the hook-shaped arms on the picker-sticks when the lay is in its inward position, as described.

4. The combination with the lay of a loom, shuttle-boxes at either end of the lay, swells on the shuttle-boxes, picker-sticks, means for supporting the picker sticks, the pickershafts, and picker-arms on the picker-shafts, of thefeeler-shafts b 6 supported in bearings on the end frames of the loom, the coiled springs 6 11 on the feeler-shafts, the feelerarms 6 b on the ends of the respective feelershafts, the levers b I) on the respective ends of the feeler-shafts, the arms 0? d having the hooked ends d d, the rods 6 b connecting the levers Z2 6 with the respective arms d d, connections between the arms d d and the picker-stick, and the fingers o 0 having the hooked ends 0 c and supported on the pickerarms, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

. AUGUSTE DONT. Witnesses:

ADA E. HAGERTY, J. A. MILLER, Jr. 

